Biofilm Control

Biofilm consists of microorganisms that exist in wet conditions. They form a slippery layer adhering to solid surfaces and contain a large number of bacteria.

Biofilm can exist on living and non living surfaces;

An example of biofilm on a living surface is dental plaque on the teeth of most animals. Untreated, this can lead to tooth decay and gum disease.

An example of biofilm on a non-living surface is the slimy covering on a stone or rock at the bottom of a stagnant pool.

Biofilm in the water industry

Biofilm in drinking water industries is responsible for a wide range of water quality and operational issues.

As microbes grow, they attach themselves to the wet surfaces of a distribution system. They protect themselves from disinfecting agents by forming biofilms.

Biofouling alone contributes to more than 45% of all membrane fouling and has been reported as a major problem in ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) membrane filtration.

Most current biofouling control techniques are either effective only initially due to the ability of the biofilms adaptation to the conditions over time. Or the process needs a repeated application to control biofouling effectively in the long run.